bit better sockets

This commit is contained in:
alessandro.bason 2021-10-20 10:51:18 +01:00
parent c4d1ffe539
commit aa08240ec9
4 changed files with 111 additions and 25 deletions

View file

@ -13,27 +13,38 @@ extern "C" {
#define SOCK_POSIX 1
#endif
struct sockaddr;
#if SOCK_WINDOWS
#pragma warning(disable:4996) // _WINSOCK_DEPRECATED_NO_WARNINGS
#include <winsock2.h>
typedef SOCKET socket_t;
typedef int socket_len_t;
#elif SOCK_POSIX
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
typedef int socket_t;
typedef uint32_t socket_len_t;
#define INVALID_SOCKET (-1)
#define SOCKET_ERROR (-1)
#endif
typedef struct sockaddr sk_addr_t;
typedef struct sockaddr_in sk_addrin_t;
typedef enum {
SOCK_TCP,
SOCK_UDP,
} skType;
// == RAW SOCKETS ==========================================
// Initialize sockets, returns true on success
bool skInit(void);
// Terminates sockets, returns true on success
bool skCleanup(void);
// Opens a socket, check socket_t with skValid
socket_t skOpen(void);
socket_t skOpen(skType type);
// Opens a socket using 'protocol', options are
// ip, icmp, ggp, tcp, egp, pup, udp, hmp, xns-idp, rdp
// check socket_t with skValid
@ -41,13 +52,16 @@ socket_t skOpenEx(const char *protocol);
// Opens a socket, check socket_t with skValid
socket_t skOpenPro(int af, int type, int protocol);
// Fill out a sk_addrin_t structure with "ip" and "port"
sk_addrin_t skAddrinInit(const char *ip, uint16_t port);
// Closes a socket, returns true on success
bool skClose(socket_t sock);
// Associate a local address with a socket
bool skBind(socket_t sock, const char *ip, uint16_t port);
// Associate a local address with a socket
bool skBindPro(socket_t sock, const struct sockaddr *name, socket_len_t namelen);
bool skBindPro(socket_t sock, const sk_addr_t *name, socket_len_t namelen);
// Place a socket in a state in which it is listening for an incoming connection
bool skListen(socket_t sock);
@ -57,21 +71,29 @@ bool skListenPro(socket_t sock, int backlog);
// Permits an incoming connection attempt on a socket
socket_t skAccept(socket_t sock);
// Permits an incoming connection attempt on a socket
socket_t skAcceptPro(socket_t sock, struct sockaddr *addr, socket_len_t *addrlen);
socket_t skAcceptPro(socket_t sock, sk_addr_t *addr, socket_len_t *addrlen);
// Connects to a server (e.g. "127.0.0.1" or "google.com") with a port(e.g. 1234), returns true on success
bool skConnect(socket_t sock, const char *server, unsigned short server_port);
// Connects to a server, returns true on success
bool skConnectPro(socket_t sock, const struct sockaddr *name, socket_len_t namelen);
bool skConnectPro(socket_t sock, const sk_addr_t *name, socket_len_t namelen);
// Sends data on a socket, returns true on success
int skSend(socket_t sock, char *buf, int len);
int skSend(socket_t sock, const char *buf, int len);
// Sends data on a socket, returns true on success
int skSendPro(socket_t sock, char *buf, int len, int flags);
int skSendPro(socket_t sock, const char *buf, int len, int flags);
// Sends data to a specific destination
int skSendTo(socket_t sock, const char *buf, int len, const sk_addrin_t *to);
// Sends data to a specific destination
int skSendToPro(socket_t sock, const char *buf, int len, int flags, const sk_addr_t *to, int tolen);
// Receives data from a socket, returns byte count on success, 0 on connection close or -1 on error
int skReceive(socket_t sock, char *buf, int len);
// Sends data on a socket, returns true on success
// Receives data from a socket, returns byte count on success, 0 on connection close or -1 on error
int skReceivePro(socket_t sock, char *buf, int len, int flags);
// Receives a datagram and stores the source address.
int skReceiveFrom(socket_t sock, char *buf, int len, sk_addrin_t *from);
// Receives a datagram and stores the source address.
int skReceiveFromPro(socket_t sock, char *buf, int len, int flags, sk_addr_t *from, int *fromlen);
// Checks that a opened socket is valid, returns true on success
bool skIsValid(socket_t sock);
@ -81,6 +103,13 @@ int skGetError(void);
// Returns a human-readable string from a skGetError
const char *skGetErrorString(void);
// == UDP SOCKETS ==========================================
typedef socket_t udpsock_t;
#ifdef __cplusplus
} // extern "C"
#endif